Absorbent non-woven felt material and method of making same
US7501364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Nov 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/698
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a non-woven felt material that includes a blend of cotton shoddy and synthetic fibers, and a method of making the same. The blend of cotton shoddy and synthetic fibers is carded and needled to form a batt. The batt is compacted and unified into its stable final shape by heating and soft-pressing, which causes at least a portion of the synthetic fibers to soften and/or melt and thereby bond the needled cotton shoddy and synthetic fibers together. The non-woven felt material according to the invention is strong, tear resistant, yet provides a non-slip, cushioned walking surface that readily absorbs and contains spilled oils, water and/or glycols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.